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Naily [24]
3 years ago
7

Which table does NOT represent a function?

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0
D is the answer because you can't have the same X value
Anna35 [415]3 years ago
4 0
D because some of the inputs have the same output therefor it is not a function
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Given f (x) = -4x + 4, solve for x when f (x) = 0
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Answer:

x = 1

Step-by-step explanation:

Given:

  • f(x) = -4x + 4
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We are asked to solve for x when the function is equal to zero.

<u>We should have</u>: 0 = -4x + 4

<u>Solve</u>

1. Subtract 4 from both sides

0 - 4 = -4x + 4 - 4

-4 = -4x

2. Divide both sides by -4

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1 = x

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First, solve for the slope. This can be found by looking at the y and x intercepts. At x = 0, y = 1.5. At x = 2, y = 0.

Slope is defined as Δy/Δx, or the change in y over the change in x. This means that in order to calculate the slope, you must find the difference between the values of y and divide it by the difference in the values of x for the two points to determine the slope between them.

(0 - 1.5)/(2-0) = (-1.5)/2 = -0.75 or -3/4

Now that you have the slope, we can write the equation in slope intercept form, y = mx + b, where m is the slope we calculated and b is the y intercept, 1.5.

y = (-3/4)x + 1.5
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